Okla. Stat. tit. 59, § 59-4002: Liability for acts of licensed profession or trade

The owner of property, or an owner’s agent, or a lumber yard or

building material center, or its agents or employees, who attempts

to determine cost estimates, determine various material options,

secure a detailed list of materials, or prepare a material takeoff

based upon a drawing, plan, computer program calculation or any

professional source of written information for his or her

construction project, shall not be held liable for the acts of, nor

deemed to practice, a profession or trade required to be licensed in

this state.